Well-drilling machine.



110.718,112. PATBNTBD JAN. 13, 1903.

11. H. BVBRHARD.

WELL DRILLING MACHINE.

APPLICATION FILED JUNE Z, 1902.

f @-1. f 1w 3 ff iw-nun@ L a i Il 111mg 111111111uuyxmunwum dei? 13NITE-n STATES PATENT OFFICE.

HENRY H. EVERHARD, OF MASSILLON, OHIO.

WELL-DRILLING MACHINE.

SPECIFICATION forming part of Letters Patent N o. 718,112, dated January18, 1903.

Application filed June 20, 1902.

To all whom it may concer-nf:

Be it known that I, HENRY H. EVERHARD, a citizen of the United States,residing at Massillon,in the countyof Stark and State of Ohio, haveinvented certain new and useful Improvements in Well-DrillingMachines;and I do hereby declare that the following is a full, clear, and exactdescription of the same, reference being had to the annexed drawings,making a part of this specification, and to the figures of referencemarked thereon, in Which- Figure lis a side view showing a portion ofthe frame and illustrating the-drill-operating mechanism. Fig. 2 is atop view. Fig. 3 is a side View showing the opposite side from thatillustrated in Fig. 1. Fig. 4 is a side View of the collar and its yoke,also a portion of the yoke-shaft,said parts being designed to throw inand out the outlet-gear. Fig. V5 is an edge View of the part shown inFig. 4.

The present invention ,has relation to Welldrilling machines; and itconsists in the novel construction hereinafter described, andparticularly pointed out in the claims.

Similar numerals of reference indicate corresponding parts in all thefigures of the drawings.

The object of the present invention is to provide a means for impartinga reciprocating movement to the drill by means of a drilloperating ropeand at the same time to change the length of the reciprocating movementWithout stopping the movement of themachine proper.

In the accompanying drawings, 1 and 2 represent the end members of aframe, to Which are attached in any convenient and Well. known mannerthe sidebars 3 and 4 and the center bar 5, which, parts may be arrangedsubstantially as shown in Fig. 2 or they may be dierently arranged, asthe onlyobject is to providesuitable framework to connect the variousparts of the machine, and the frame may be so constructed and preferablyis constructed so that it can be mounted upon a Wagon to produce aportable machine.

The drawings do not show the machine mounted upon a wagon, but it willbe understood that the frame is to be so formed that it may be mounted.

The power-shaft 6 is properly journaled to the side bar 4 and the centerbar 5, which .11 and the toothed segment 12,.

Serial No. 112,409. (No model.)

power-shaft is provided with the power-Wheel 7. The power-shaft is alsoprovided with the vcrank-wheel 8; but it is not necessary to provide thespecific crank-Wheel herein shown, as an ordinary crank will answer thesame purpose as the crank herein shown.

To the side bar 3 and the center bar 5 are attached suitable brackets 9or their equivalents, Which brackets carry the shaft l0 and to whichshaft are securely attached the links To the arms 1l is connected thecross-bar 13, upon which cross-bar are journaled the -arms 14, and tothe free ends of the arms 14 the axle l5 is connected and upon Whichaxle .is mounted the drill-operating Wheel 16, which Wheel is groovedupon its periphery and is so formed for the purpose of receiving thedrill-operating rope 17, which drill -operating rope is Wound around thedrum 1S and is Vextended upward and over a suitable pulley properlyconnected to an ordinary derrick.

The derrick and upperpulley are not illustrated, as they form noparticular part ofthe present invention, but are such as are com` monlyused in well-drilling machines of this class, and hence need nodescription here.

In use I prefer to loosely mount the drilloperating Wheel 16 upon theaxle 15, so that it can rotate upon the axle and slide thereon to followthe movement of the operating-rope as it is wound and unvvound upon thedrum 18. To the crank-Wheel 8 is attached the pitman 19, which pitman isprovided with the lateral arm 20, said lateral arm 20 and pitman 19being connected to the axle 15, substantially as illustrated in thedrawings, and as reciprocating movement isA imparted to the pitman aswinging movement Will be imparted to the arms 14, which in"turn impartsa vibrating or swinging movement to the axle 15 and the Wheel 16, and asthe axle 15, together with the wheel 16, is moved toward the left handin Fig. 1 and toward the right hand in Fig. 2 the drill will be elevatedby the down pull of the elevating-rope 17, and as the Wheel 6 is movedin the opposite direction the elevating-rope will be released and thedrill permitted to drop upon the material being drilled.

It Will be understood that when a short oscillating or swinging movementis given to the wheel 16 a short stroke will be imparted, and

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a long stroke will be imparted to the drill and by increasing the drill;or in other Words a short swinging movement imparts a correspondinglyshort np-and-down movement to the drill, and a long swinging movement ofthe wheel 16 imparts a long up-and-down movement lo the drill, thisfeature being desirable in operating upon different kinds of material.and by my peculiar arrangement I am enabled to lengthen the stroke ofthe drill without changing the reciprocating movement of the pitman 19.In order to accomplish this adjustment, the toothed segment 12 isprovided, which toothed segment is moved by means of the worm-gear 2l,which worm-gear meshes with the tooth-segment l2 and is securelyattachedto the shaft 22,which shaft is properly journaled in the bracket 23 orits equivalent at its inner end and to the bracket 24 at its outer end.

It will be understood that by changingthe position of the axle 15,together with the wheel 16, by elevating and lowering the links 1l thestroke of the drill will be adjusted as to length. It must, however, beborne in mind that when the links 1l are brought to their highest pointthe pitman 19 must be in a horizontal position, reference being had tothe crank 26 of the crank-wheel 8 beingin a horizontal plane with thecenterof the axle 6.

It will be understood that by my peculiar arrangement I am enabled toshift the centers of the pivotal points of the links 11, which in turnadjust the throw of the wheel 16.

For the purpose of im partinga rotary movement to the drum 18 by meansof the powershaft (5 the cog-wheels 27 and 28 are provided, which wheelsare arranged in substantially the same manner as all drilling-machinesof this class and are thrown in and out of gear with reference to thepower-shaft by means of the clutch 29, which clutch is operated in theusual manner by means of the lever 30. This construction is common withall welldrilling machines and needs no specific description here.

In order to let off the operating-rope from time to time from the drum18, the shaft 3l is provided, which shaft is provided with the pinion32, which pinion meshes with the wheel 28. The shaft 3l is also providedwith the cog-wheel 33, which cog-wheel, together with the shaft 3l andthe pinion 32, is rotated by means of the worm 34 and the shaft 35, saidshaft being provided with the crank-wheel 3G. It will, however, beunderstood that when the operating-rope 17 is to be wound upon the drumto elevate the drill the clutch 29 is to be brought into operativeaction, and at this time the pinion 32 is to be thrown out of gear withthe cog-wheel 28. This being brought about by moving the shaft 3lendwise, the pinion 32 is moved to one side of the wheel 28. For thepurpose of moving the shaft 3l endwise the operating-rod 37 is provided,which operating-rod has securely connected thereto a yoke 32, which yokeengages the grooved disk 39, which grooved disk is securely attached tothe shaft 31, and when the rod 37 is moved in the direction to throw theyoke 38 outward it will carry with it the shaft 3l and bring the pinion32 out of contact with the wheel 28, thereby allowing the drum to berotated to properly wind the rope and elevate the drill.

Having fully described my invention,what I claim as new, and desire tosecure by Letters Patent, is-

1. In a well-drilling machine, a suitable frame, a crank -shaftjournaled thereto, a shaft located to one side of a horizontal planethrough the power-shaft, said shaft provided with links, swinging arms,a cross-bar connected to the links and to the swinging arms, an axlecarried by the free ends of the swinging arms, and said axle providedwith a drilloperating rope-wheel, an actuating-pitman, and means for adjust-ing the pivoted ends of the swinging arms, substantially as and forthe purpose specified.

2. In a well-drilling machine, a suitable frame, a drill-rope drumjournaled thereto, means for rotating the drum to wind the drillropethereon, means to release the drill-'rope from the drum, a power-shaftprovided with a crank, a drill-rope-operating wheel and axle, a pitmanadapted to oscillate the axle and its rope-operating wheel, and meansfor adjusting the degreeof oscillation of the drillrope operating wheelindependent of the throw of the pitman-operating crank, substantially asand for the purpose specified.

3. In a well-drilling machine, a suitable frame, a power-shaft providedwith a crank, a pitman connected to the crank, a drill-ropeoperatingwheel mounted upon an axle and the axle and Wheel actuated by thepitman, arms carrying the axle and drill-rope-operating wheel, said armspivoted upon a crossshaft, said cross-shaft carried by links capable ofmovement through the arc of a circle, and means for holding the arms ata fixed point of adjustment, substantially as and for the purposespecified.

4. In a welldrilling machine, a suitable frame, a power-shaft providedwith a crank, a shaft provided with a toothed segment, a worm-gearmeshing with the toothed segment, means for rotating the worm-gear,links connected to the shaft provided with the toothed segment, swingingarms carrying an axle and drill-operating wheel, and the swinging armsand the links fixed to the toothed-segment shaft hinged together, and apitman connected to the crank of the power-shaft and to the axle of therope-operating wheel, substantially asand for the purpose specified.

In testimony that I claim the above I have hereunto subscribed my namein the presence of two witnesses.

HENRY H. EVERl-IARD. Witnesses:

JOHN H. SroNsELLE, J. R. BOND.

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